Meanwhile in Rome, Marcus Crassus completes preparing his legionary army just as Tiberius hopes his help will be rewarded with second rank, but fears being side-tracked in favor of the seasoned young Caius Julius Caesar.

Caesar needs a rich, ambitious ally to pay his debts and finance his political campaign, but loses points with Crassus by cockily playing with his slave-lover, Kore, who unlike Crassus's wife, is invited to join the army's train.

A young freed slave, named Sibyl, shows an interest in Gannicus.

When Cilician pirates arrive, Spartacus learns their captain Heracleo has a secret deal with the late aedilius Ennius to use his seal to sell their laundered loot at market prices.

Spartacus's victory by killing Furius and Cossinius unwittingly plays into Crassus's hand, as he now formally "inherits" sole command of the Roman Army.

Spartacus and his followers plan to take control of the walled, coastal city of Sinuessa, with a little help from a runaway local slave named Diotimos who inspires Spartacus's war council to choose a plan on how to take the city.

It premiered on January 25, 2013 and concluded on April 12, 2013.

It has been nearly one year since the slave rebellion started (which is known as the Third Servile War).

Despite some complications, the tactic works and the slaves storm and capture the city after a fierce night-time battle.

Although several of the rebels want to massacre all of the citizens of Sinuessa, Spartacus instead takes some of them prisoner.